I have a 98 blazer when I start mine it's just the parking lights on and my high beam indicator is on but when I flick it it dosnt do anything also there is a clicking from Behind the glove box could it be a relay or the multi switch ?? Thanks

 

I have 98 blazer headlights not coming on ....I changed the switch still not coming on.... on park lights or dash lights also... what should i check next?

 

My first guess would be the multifunction switch (Turn signal switch).
When I bought my blazer I had the constant clicking turn signal relay behind the glove box (very annoying to listen to on my 5 hr drive home) and no horn. After replacing my multifunction switch both of those problem went away.